The Smart Detective

"The Smart Detective" is one of nine short stories written by Leslie Charteris and included in the twenty-first Saint book The Happy Highwayman published in 1939.

Plot
Upon returning to England from a trip abroad, The Saint becomes interested in a stash of emeralds owned by a sweat shop owner, not realizing an ambitious Scotland Yard detective is watching his every move. ''

Television adaptation
"The Smart Detective" was adapted as an episode of The Saint TV series starring Roger Moore and was first broadcast during the show's fourth season on 22 July 1965.